Perhaps we should all indulge this thread - but with pictures.

'86 DeRosa (Pro) - 60X58.5 with 18.5 HT SLX on the Columbus label. I do not know (off-hand) the frame angles. All original. Does not ride or handle like other bikes I have owned with SLX tube label. Rumors indicate that on larger frame sizes, SP was used as a DT. Forks were also rumored to have tube change(s) across the size range. Supposedly, designed as "an all day racer", f-c is shortish at 59.5, not my lightest. Ridden with Conti Sprinters 22mm at ~120psi. tried with supple 25s @100 and wow - changes the whole bike. , almost mushy. The roads I ride with this bike are hilly & twist and the downhills are always run fast. Surefooted. If you ride flat or most paved paths the handling cannot be appreciated. A favorite.